| 氮肥施用量对夏玉米土壤NO-3-N含量的影响 |
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| 引用本文： | 韩宝文,李春杰,刘忠宽,邢竹.氮肥施用量对夏玉米土壤NO-3-N含量的影响[J].河北农业科学,2006,10(1):29-32. |
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| 作者姓名： | 韩宝文 李春杰 刘忠宽 邢竹 |
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| 作者单位： | 河北农业大学,河北,保定,071001;河北省农林科学院农业资源环境研究所,石家庄,050051;河北省农林科学院农业资源环境研究所,石家庄,050051 |
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| 摘 要： | 采用定点监测方法,研究了不同氮肥施用量对夏玉米土壤NO-3-N含量的影响.结果表明:夏玉米增施氮肥,可导致土壤NO-3-N含量增加,且0～20 cm土层的NO-3-N含量增加最明显;各土层的土壤NO-3-N含量基本随氮肥施用量的增加而升高,但随着土层深度的增加,NO-3-N含量变化趋于平稳.河北平原夏玉米田正常施用氮肥,尚不会产生NO-3-N对土壤和地下水污染.
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| 关 键 词： | 氮肥 污染 硝态氮 土壤 地下水 |
| 文章编号： | 1008-1631（2006）01-0029-04 |
| 收稿时间： | 2006-02-28 |
| 修稿时间： | 2006-02-28 |
The Soil Nitrogen Pollution Research of Applying Nitrogenous Fertilizer on Summer-corn |
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| HAN Bao-wen,LI Chun-jie,LIU Zhong-kuan,XING Zhu.The Soil Nitrogen Pollution Research of Applying Nitrogenous Fertilizer on Summer-corn[J].Journal of Hebei Agricultural Sciences,2006,10(1):29-32. |
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| Authors: | HAN Bao-wen LI Chun-jie LIU Zhong-kuan XING Zhu |
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| Institution: | 1. Agricultural University of Hebei, Baoding 071001, China; 2, Institute of Agro-resources and Environment, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, China |
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| Abstract: | In Malan farmland of Hebei province,the Nitrogenous soil pollution experiment of applying nitrogenous fertilizer in summer-corn was studied.The results shows: the NO~-_3-N content of 0-20 cm soil increased remarkable along with N fertilizer increasing after applying N fertilizer,the highest content of NO~-_3-N was 39.3 mg/kg when applying N 1 200 kg/hm~2.Applying N 150-300 kg/hm~2,the NO~-_3-N content of each depth 0-150 cm was under 20 mg/kg.Applying N 600 kg/ha and more,the NO~-_3-N~()content of 0-20 cm was 30-40 mg/kg,but the NO~-_3-N content of deep soil was under 30 mg/kg.So,usual N fertilizer applying cant produce NO~-_3-N pollution to soil and groundwater in Hebei plain. |
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| Keywords: | Nitrogenous fertilizer Pollution NO~-_3-N Soil Ground water |
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